In this case one needs to check that after the two stones are captured
the capturing single stone can be recaptured bringing us back to where
we started. If it is a "big eye" there is no recapture.
-Magnus
Quoting Brian Sheppard <sheppar...@aol.com>:
For black I think I prune this kind of two stone suicide
always no matter what the situation is (exception is ko). These
prunings are probably wrong in some extremely rare cases.
How can you tell the difference between this kind of two-stone
self-atari, and a self-atari of two stones within an opponent's
"big eye", which could be necessary for life&death?
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--
Magnus Persson
Berlin, Germany
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